D12. Hopper Strainer
Leave this basket in place at all
times in normal operations. It
catches large debris that would clog
the meter or air system, and
prevents entry by pests and
unauthorized or at-risk persons.

D13. Fertilizer Hopper
The 3500 liter (100 bushel) hopper
has a graduated scales molded in
for gauging fill level.

D14. Air Release Structure
The side tubes of the emergency
escape ladder are open at each end
to keep the top of the fertilizer
meter

at atmospheric pressure.

D15. Hopper Level Sensor
This sensor is mounted at the
211 liter (6 bushel) level. The MVT
or PM400 seed monitor can trigger
an alarm when no material is
present at the sensor.

D16. Fertilizer Meter
The meter delivers fertilizer to the
fan air stream at an areal rate set by
the Range Gears

and Variable

rate Gearbox

D17. Range Gears
These gears provide coarse rate
setting by exchanging them between
17T:54T (low) and 54T:17T (high).
See Seed Rate Manual for details.

D18. Meter Flutes
The standard flutes on model
1625AHD are “4 star”, and provide
the maximum rate possible with this
meter.

D19. Ground Drive Wheel
The ground contact wheel powers
the dry fertilizer meter

, and

keeps the areal metering rate
independent of ground speed.

D20. Drive Lift Cylinder
The drive wheel

automatically raised when the
planter is raised.

D21. Drive Lock-Up
During transport, or if fertilizer is not
being applied during planting, this
arm locks-up the drive. See
page 43.

D22. Variable Rate Gearbox
This provides fine control of material
rate. See the Seed Rate Manual for
setting details.

D23. Calibration Crank
The crank operates the meter when
stationary, for calibrating chart rates
to specific materials used. See the
Seed Rate Manual for details.

D24. Calibration Bag
This bag has hooks for collecting
samples beneath the meter.

D25. Calibration Scale
This scale weighs the bag when
empty and with a sample for
calibration.

D26. Calibration Door
This is the rear lower door on the
meter. Only metered material is
delivered to this door.

D27. Clean-Out Door
This is the front lower door of the
meter, used only for emptying the
hopper.

D28. Fan Pressure Gauge
This gauge is mounted on the right
wing, inboard of the Air-Pro

gauge.

It reports raw fan pressure.

D29. Fan Manifold
This splits fertilizer air flow for the
four meter chambers.

D30. Distribution Tower
Each meter chamber feeds one
tower. Towers increase uniformity in
the material flow prior to division at
the turrets.

D31. Turret Clamp
A quick-release clamp connects the
turret

to the tower

and may

be released for periodic inspection
and troubleshooting.

D32. Distribution Turret
This manifold equally divides the
material flow to the connected rows.
4-outlet turret shown. Outlet count
depends on number of rows.

D33. Coulter Applicator
This delivery tube is adjustable for
release height. See page 69.